Erasing Distinguishability Using Quantum Frequency Up-Conversion

Hiroki Takesue

doi:10.1103/PhysRevLett.101.173901

Erasing Distinguishability Using Quantum Frequency Up-Conversion

Quantum Physics 2008-10-23 v1

Authors: Hiroki Takesue

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Abstract

The frequency distinguishability of two single photons was successfully erased using single photon frequency up-conversion. A frequency non-degenerate photon pair generated via spontaneous four-wave mixing in a dispersion shifted fiber was used to emulate two telecom-band single photons that were in the same temporal mode but in different frequency modes. The frequencies of these photons were converted to the same frequency by using the sum frequency generation process in periodically poled lithium niobate waveguides, while maintaining their temporal indistinguishability. As a result, the two converted photons exhibited a non-classical dip in a Hong-Ou-Mandel quantum interference experiment. The present scheme will add flexibility to networking quantum information systems that use photons with various wavelengths.

Keywords

single-photon sources photon pair generation hong-ou-mandel interference

Cite

@article{arxiv.0810.4005,
  title  = {Erasing Distinguishability Using Quantum Frequency Up-Conversion},
  author = {Hiroki Takesue},
  journal= {arXiv preprint arXiv:0810.4005},
  year   = {2008}
}

Comments

4 pages, 5 figures

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